45MG
Ultrasonic Thickness Gage
Standard Features
In its basic configuration the 45MG instrument is a simple and straightforward gage that requires minimal operator training to tackle most common thickness gaging applications. With additional optional software options and transducers, however, the 45MG thickness gage can become significantly more advanced and take on applications well beyond that of a typical entry-level gage. Furthermore, most options are available individually at the time of purchase or can be added in the future as your needs change.​
The 45MG advanced ultrasonic thickness gage is packed with standard measurement features and software options. This unique instrument is compatible with the complete range of Olympus dual element and single element thickness gage transducers, making it an all-in-one solution for virtually every thickness gage application.
Compatible with the full line of Olympus dual element transducers for thickness measurements on internally corroded metals
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Min./Max. mode
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Two Alarm modes
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Differential mode
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Time-based B-scan
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Reduction rate
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Gain adjust (standard, high, and low)
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Password instrument lock
Olympus 45MG Ultrasonic Thickness Gauge
Introducing the Olympus 45MG thickness gage.
Optional Features
From a simple corrosion gauge to a multi-purpose precision thickness gauge with only a few key strokes. The 45MG offers five code-activated software options that makes it one of the most versatile thickness gauges in the industry.
Single Element
For very precise thickness measurements on many materials, including metals, plastics, composites, glass, and ceramics. Compatible with single element Microscan transducers ranging from 2.25 MHz to 30 MHz.
Data Logger
The 45MG thickness gage has a full-featured internal bidirectional alphanumeric data logger that is designed to easily store and transfer thickness readings and waveform data. Includes the GageView™ interface program, a Windows®-based application.
Single Element High Penetration
For very precise thickness measurements on many materials, including metals, plastics, composites, glass, and ceramics. Compatible with single element Microscan transducers ranging from 2.25 MHz to 30 MHz.
Echo-to-Echo / THRU COAT Technology
Using echo-to-echo, the true metal thickness is displayed and the thickness of the coating layer will be ignored. THRU-COAT technology measures metal and nonmetallic coating thicknesses, each adjusted for their correct sound velocities.
There is no need to remove paint or coatings from surfaces.
Live A-scan with Waveform Adjust
Live A-scan mode enables users to view the ultrasound waveform (or A-scan) directly on the gage’s display, verify the thickness measurement, and make manual adjustments to gain and blanking settings to maximize measurement performance. This helpful option features Manual Gain Adjust, Extended Blanking, First Echo Blank, Range, and Delay.
Download 45MG Ultrasonic Thickness Gage Brochure
Download the latest revision of the Olympus 45MG Digital Ultrasonic Thickness Gage Brochure
Simple, Rugged, and Reliable Operation
Outdoor display setting, optional A-scan mode
The 45MG advanced ultrasonic thickness gage is packed with standard measurement features and software options. This unique instrument is compatible with the complete range of Olympus dual element and single element thickness gage transducers, making it an all-in-one solution for virtually every thickness gage application.
Built for Tough Environments
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Compact, weighs only 430.9g (0.95 lb)
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Rugged, designed for IP67
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Explosive atmosphere: tested using MIL-STD-810G, Method 511.5, Procedure I
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Shock tested using MIL-STD-810G, Method 516.6, Procedure I
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Vibration tested using MIL-STD-810G, Method 514.6, Procedure I
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Drop tested using MIL-STD-810-G, Method 514.6, Procedure IV
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Wide operating temperature range
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Optional protective rubber boot with gage stand
Indoor display setting, optional A-scan mode
Designed for Easy Operation
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Simple keypad for right hand/left hand operation
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Easy operator interface with direct access to most functions
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Internal and external microSD™ memory card storage
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USB communication ports
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Optional alphanumeric data logger with 475,000 thickness readings or 20,000 waveforms
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Password protected instrument lock
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Color transflective QVGA display with indoor and outdoor color settings for superior clarity
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Default/Custom single element transducer setups (Optional)
Accurately measure remaining wall thickness of metal pipes, tanks, beams, ship hulls, and other structures through paint and similar coatings...
Thickness Measurements on Internally Corroded Metals
Using Dual Element Transducers
One of the major applications of the 45MG® thickness gage is measuring the remaining thickness of pipes, tubes, tanks, pressure vessels, hulls, and other structures affected by corrosion or erosion. Dual element transducers are most commonly used for these applications.
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Automatic Probe Recognition for standard D79X series dual element transducers
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Calibration doubling warning when echo doubling may occur during calibration
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The echo-to-echo / THRU-COAT® technology option enables measurements on painted and coated surfaces
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High-temperature measurements; up to 500 °C (932 °F)
High Temperature Surfaces
The 45MG gage is ideally suited for making stable thickness measurements on hot material surfaces (up to 500 ºC or 932 ºF) with the D790 series transducers (D790, D790-SM, D790-RL, and D790-SL).
The Zero Compensation feature enhances the accuracy of measurements on hot surfaces by compensating for temperature changes in the transducer delay line due to thermal drift.
45MG Specifications
MEASUREMENTS
Dual element transducer measurement mode - Time interval from a precision delay after the excitation pulse to the first echo
THRU-COAT® measurement (optional) - Measurement of true metal and coating thicknesses with a single back-wall echo (with D7906-SM, D7906-RM, and D7908 transducers)
Thru-Paint Echo-to-Echo - Time interval between two successive back-wall echoes to eliminate paint or coating thickness.
Single element transducer measurement modes -
Mode 1: Time interval between the excitation pulse and the first back-wall echo
Mode 2: Time interval between the delay line echo and the first back-wall echo (with delay or immersion transducers)
Mode 3: Time interval between successive back-wall echoes following the first interface echo after the excitation pulse (with delay line or immersion transducers)
Thickness range - 0.080 mm to 635.00 mm (0.003 in. to 25.000 in.) depending on material, transducer surface conditions, temperature, and selected configuration (full range requires single element option)
Material velocity range - 0.508 mm/µs to 18.699 mm/µs (0.020 in./µs to 0.7362 in./µs)
Resolution (selectable) -
Low: 0.1 mm (0.01 in.)
Standard: 0.01 mm (0.001 in.)
Single Element option: 0.001 mm (0.0001")
Transducer frequency range -
Standard: 2.25 MHz to 30 MHz (-3 dB)
High Penetration (Single Element option): 0.50 MHz to 30 MHz (-3 dB)
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GENERAL
Operating temperature range - -10 °C to 50 °C (14 °F to 122 °F)
Keypad - Sealed, color-coded keypad with tactile and audible feedback
Case - Impact-resistant and water-resistant, gasketed case with sealed connectors. Designed for IP67.
Dimensions (W x H x D) - Overall: 91.1 mm x 162 mm x 41.1 mm (3.59 in. x 6.38 in. x 1.62 in.)
Weight - 430.9 g (0.95 lb)
Power supply - 3 AA batteries/USB power supply
Battery life operating time - 3 AA alkaline: 20 to 21 hours
3 AA NiMH: 22 to 23 hours
3 AA Lithium 35 to 36 hours
Standards - Designed for EN15317
Explosive atmosphere - Tested using MIL-STD-810G, Method 511.5, Procedure I
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DISPLAY
Color transflective QVGA display - Liquid crystal display, display area 54.61 mm x 41.15 mm (2.15 in. x 1.62 in.)
Rectification - Full wave, RF, half-wave positive, or half-wave negative (Waveform option)
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INPUTS/OUTPUTS
USB - 2.0 client
Memory card - Maximum capacity: 2 GB External MicroSD memory card
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INTERNAL DATA LOGGER
Data logger - The 45MG gage identifies, stores, recalls, clears, and transmits thickness readings, waveform images, and gage configuration information through USB port or microSD.
Capacity - 475,000 thickness measurements or 20,000 waveforms with thickness measurements
File names, IDs, and comments - 32-character file names and 20-character alphanumeric location codes with four comments per location
File structures - Six standard or custom application-specific file structures
Reports - On-gage reporting of summary with statistics, Min./Max. with locations, Min. review, file comparison, and alarm report